Work vehicle including loader work device

Abstract

Provided is a work vehicle including a cabin and a loader work device. The work vehicle includes: a vehicle main body; a main body rear; front and rear wheels; a bucket; a lifting arm connected to the bucket to lift the bucket; a boom support connected to the lifting arm; a rear link having one end coupled to a first boom support hinge part of the boom support and an opposite end coupled to a rear hinge part of the main body rear; a boom cylinder having one end coupled to a second boom support hinge part of the boom support to rotate the boom support; and a rotation link having one end coupled to a third boom support hinge part of the boom support and an opposite end coupled to a front hinge part of the vehicle main body.

What is claimed is: 
     
       1. A work vehicle including a cabin and a loader work device, the work vehicle comprising:
 a vehicle main body for supporting the cabin; 
 a main body rear disposed on a rear side of the vehicle main body; 
 front and rear wheels for moving the work vehicle; 
 a bucket for receiving a load; 
 a lifting arm connected to the bucket to lift the bucket up and down; 
 a boom support connected to the lifting arm; 
 a rear link having one end coupled to a first boom support hinge part formed in the boom support and an opposite end coupled to a rear hinge part formed in the main body rear; 
 a boom cylinder having one end coupled to a second boom support hinge part formed in the boom support to rotate the boom support such that the lifting arm rotates or moves up and down; and 
 a rotation link having one end coupled to a third boom support hinge part formed in the boom support and an opposite end coupled to a front hinge part formed at a front end of the vehicle main body, 
 wherein the one end of the boom cylinder is coupled to the second boom support hinge part, and an opposite end of the boom cylinder is directly coupled to the rear hinge part together with the rear link, 
 wherein a rotation center of the rear link is same as a rotation center of the boom cylinder. 
 
     
     
       2. The work vehicle of  claim 1 , wherein the front hinge part is formed above the front wheel of the work vehicle, or formed vertically above between the front wheel and the rear wheel. 
     
     
       3. The work vehicle of  claim 1 , wherein the second boom support hinge part is formed at a position higher than the third boom support hinge part, and
 the second boom support hinge part is maintained at the position higher than the third boom support hinge part even when the boom support and the lifting arm rotate. 
 
     
     
       4. The work vehicle of  claim 1 , wherein the boom support is partially bent or curved.